mirror of
https://github.com/rust-lang/rust-clippy
synced 2024-12-18 00:53:31 +00:00
405 lines
16 KiB
Text
405 lines
16 KiB
Text
error: defining a method called `add` on this type; consider implementing the `std::ops::Add` trait or choosing a less ambiguous name
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--> $DIR/methods.rs:38:5
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38 | pub fn add(self, other: T) -> T { self }
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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= note: `-D clippy::should-implement-trait` implied by `-D warnings`
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error: methods called `into_*` usually take self by value; consider choosing a less ambiguous name
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--> $DIR/methods.rs:49:17
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49 | fn into_u16(&self) -> u16 { 0 }
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| ^^^^^
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= note: `-D clippy::wrong-self-convention` implied by `-D warnings`
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error: methods called `to_*` usually take self by reference; consider choosing a less ambiguous name
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--> $DIR/methods.rs:51:21
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51 | fn to_something(self) -> u32 { 0 }
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| ^^^^
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error: methods called `new` usually take no self; consider choosing a less ambiguous name
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--> $DIR/methods.rs:53:12
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53 | fn new(self) -> Self { unimplemented!(); }
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| ^^^^
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error: called `map(f).unwrap_or(a)` on an Option value. This can be done more directly by calling `map_or(a, f)` instead
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--> $DIR/methods.rs:121:13
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121 | let _ = opt.map(|x| x + 1)
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| _____________^
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122 | |
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123 | | .unwrap_or(0); // should lint even though this call is on a separate line
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| |____________________________^
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= note: `-D clippy::option-map-unwrap-or` implied by `-D warnings`
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= note: replace `map(|x| x + 1).unwrap_or(0)` with `map_or(0, |x| x + 1)`
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error: called `map(f).unwrap_or(a)` on an Option value. This can be done more directly by calling `map_or(a, f)` instead
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--> $DIR/methods.rs:125:13
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125 | let _ = opt.map(|x| {
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| _____________^
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126 | | x + 1
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127 | | }
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128 | | ).unwrap_or(0);
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| |____________________________^
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error: called `map(f).unwrap_or(a)` on an Option value. This can be done more directly by calling `map_or(a, f)` instead
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--> $DIR/methods.rs:129:13
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129 | let _ = opt.map(|x| x + 1)
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| _____________^
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130 | | .unwrap_or({
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131 | | 0
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132 | | });
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| |__________________^
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error: called `map(f).unwrap_or(None)` on an Option value. This can be done more directly by calling `and_then(f)` instead
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--> $DIR/methods.rs:134:13
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134 | let _ = opt.map(|x| Some(x + 1)).unwrap_or(None);
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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= note: replace `map(|x| Some(x + 1)).unwrap_or(None)` with `and_then(|x| Some(x + 1))`
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error: called `map(f).unwrap_or(None)` on an Option value. This can be done more directly by calling `and_then(f)` instead
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--> $DIR/methods.rs:136:13
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136 | let _ = opt.map(|x| {
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| _____________^
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137 | | Some(x + 1)
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138 | | }
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139 | | ).unwrap_or(None);
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| |_____________________^
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error: called `map(f).unwrap_or(None)` on an Option value. This can be done more directly by calling `and_then(f)` instead
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--> $DIR/methods.rs:140:13
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140 | let _ = opt
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| _____________^
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141 | | .map(|x| Some(x + 1))
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142 | | .unwrap_or(None);
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| |________________________^
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= note: replace `map(|x| Some(x + 1)).unwrap_or(None)` with `and_then(|x| Some(x + 1))`
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error: called `map(f).unwrap_or_else(g)` on an Option value. This can be done more directly by calling `map_or_else(g, f)` instead
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--> $DIR/methods.rs:148:13
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148 | let _ = opt.map(|x| x + 1)
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| _____________^
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149 | |
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150 | | .unwrap_or_else(|| 0); // should lint even though this call is on a separate line
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| |____________________________________^
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= note: `-D clippy::option-map-unwrap-or-else` implied by `-D warnings`
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= note: replace `map(|x| x + 1).unwrap_or_else(|| 0)` with `map_or_else(|| 0, |x| x + 1)`
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error: called `map(f).unwrap_or_else(g)` on an Option value. This can be done more directly by calling `map_or_else(g, f)` instead
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--> $DIR/methods.rs:152:13
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152 | let _ = opt.map(|x| {
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| _____________^
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153 | | x + 1
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154 | | }
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155 | | ).unwrap_or_else(|| 0);
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| |____________________________________^
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error: called `map(f).unwrap_or_else(g)` on an Option value. This can be done more directly by calling `map_or_else(g, f)` instead
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--> $DIR/methods.rs:156:13
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156 | let _ = opt.map(|x| x + 1)
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| _____________^
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157 | | .unwrap_or_else(||
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158 | | 0
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159 | | );
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| |_________________^
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error: called `map_or(None, f)` on an Option value. This can be done more directly by calling `and_then(f)` instead
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--> $DIR/methods.rs:165:13
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165 | let _ = opt.map_or(None, |x| Some(x + 1));
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try using and_then instead: `opt.and_then(|x| Some(x + 1))`
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= note: `-D clippy::option-map-or-none` implied by `-D warnings`
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error: called `map_or(None, f)` on an Option value. This can be done more directly by calling `and_then(f)` instead
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--> $DIR/methods.rs:167:13
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167 | let _ = opt.map_or(None, |x| {
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| _____________^
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168 | | Some(x + 1)
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169 | | }
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170 | | );
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| |_________________^
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help: try using and_then instead
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167 | let _ = opt.and_then(|x| {
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168 | Some(x + 1)
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169 | });
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error: called `map(f).unwrap_or_else(g)` on a Result value. This can be done more directly by calling `ok().map_or_else(g, f)` instead
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--> $DIR/methods.rs:180:13
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180 | let _ = res.map(|x| x + 1)
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| _____________^
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181 | |
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182 | | .unwrap_or_else(|e| 0); // should lint even though this call is on a separate line
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| |_____________________________________^
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= note: `-D clippy::result-map-unwrap-or-else` implied by `-D warnings`
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= note: replace `map(|x| x + 1).unwrap_or_else(|e| 0)` with `ok().map_or_else(|e| 0, |x| x + 1)`
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error: called `map(f).unwrap_or_else(g)` on a Result value. This can be done more directly by calling `ok().map_or_else(g, f)` instead
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--> $DIR/methods.rs:184:13
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184 | let _ = res.map(|x| {
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| _____________^
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185 | | x + 1
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186 | | }
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187 | | ).unwrap_or_else(|e| 0);
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| |_____________________________________^
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error: called `map(f).unwrap_or_else(g)` on a Result value. This can be done more directly by calling `ok().map_or_else(g, f)` instead
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--> $DIR/methods.rs:188:13
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188 | let _ = res.map(|x| x + 1)
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| _____________^
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189 | | .unwrap_or_else(|e|
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190 | | 0
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191 | | );
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| |_________________^
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error: called `filter(p).next()` on an `Iterator`. This is more succinctly expressed by calling `.find(p)` instead.
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--> $DIR/methods.rs:251:13
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251 | let _ = v.iter().filter(|&x| *x < 0).next();
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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= note: `-D clippy::filter-next` implied by `-D warnings`
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= note: replace `filter(|&x| *x < 0).next()` with `find(|&x| *x < 0)`
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error: called `filter(p).next()` on an `Iterator`. This is more succinctly expressed by calling `.find(p)` instead.
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--> $DIR/methods.rs:254:13
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254 | let _ = v.iter().filter(|&x| {
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| _____________^
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255 | | *x < 0
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256 | | }
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257 | | ).next();
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| |___________________________^
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error: called `is_some()` after searching an `Iterator` with find. This is more succinctly expressed by calling `any()`.
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--> $DIR/methods.rs:269:13
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269 | let _ = v.iter().find(|&x| *x < 0).is_some();
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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= note: `-D clippy::search-is-some` implied by `-D warnings`
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= note: replace `find(|&x| *x < 0).is_some()` with `any(|&x| *x < 0)`
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error: called `is_some()` after searching an `Iterator` with find. This is more succinctly expressed by calling `any()`.
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--> $DIR/methods.rs:272:13
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272 | let _ = v.iter().find(|&x| {
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| _____________^
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273 | | *x < 0
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274 | | }
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275 | | ).is_some();
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| |______________________________^
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error: called `is_some()` after searching an `Iterator` with position. This is more succinctly expressed by calling `any()`.
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--> $DIR/methods.rs:278:13
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278 | let _ = v.iter().position(|&x| x < 0).is_some();
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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= note: replace `position(|&x| x < 0).is_some()` with `any(|&x| x < 0)`
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error: called `is_some()` after searching an `Iterator` with position. This is more succinctly expressed by calling `any()`.
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--> $DIR/methods.rs:281:13
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281 | let _ = v.iter().position(|&x| {
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| _____________^
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282 | | x < 0
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283 | | }
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284 | | ).is_some();
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| |______________________________^
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error: called `is_some()` after searching an `Iterator` with rposition. This is more succinctly expressed by calling `any()`.
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--> $DIR/methods.rs:287:13
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287 | let _ = v.iter().rposition(|&x| x < 0).is_some();
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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= note: replace `rposition(|&x| x < 0).is_some()` with `any(|&x| x < 0)`
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error: called `is_some()` after searching an `Iterator` with rposition. This is more succinctly expressed by calling `any()`.
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--> $DIR/methods.rs:290:13
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290 | let _ = v.iter().rposition(|&x| {
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| _____________^
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291 | | x < 0
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292 | | }
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293 | | ).is_some();
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| |______________________________^
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error: use of `unwrap_or` followed by a function call
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--> $DIR/methods.rs:325:22
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325 | with_constructor.unwrap_or(make());
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| ^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(make)`
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= note: `-D clippy::or-fun-call` implied by `-D warnings`
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error: use of `unwrap_or` followed by a call to `new`
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--> $DIR/methods.rs:328:5
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328 | with_new.unwrap_or(Vec::new());
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `with_new.unwrap_or_default()`
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error: use of `unwrap_or` followed by a function call
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--> $DIR/methods.rs:331:21
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331 | with_const_args.unwrap_or(Vec::with_capacity(12));
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| Vec::with_capacity(12))`
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error: use of `unwrap_or` followed by a function call
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--> $DIR/methods.rs:334:14
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334 | with_err.unwrap_or(make());
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| ^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|_| make())`
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error: use of `unwrap_or` followed by a function call
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--> $DIR/methods.rs:337:19
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337 | with_err_args.unwrap_or(Vec::with_capacity(12));
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|_| Vec::with_capacity(12))`
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error: use of `unwrap_or` followed by a call to `default`
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--> $DIR/methods.rs:340:5
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340 | with_default_trait.unwrap_or(Default::default());
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `with_default_trait.unwrap_or_default()`
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error: use of `unwrap_or` followed by a call to `default`
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--> $DIR/methods.rs:343:5
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343 | with_default_type.unwrap_or(u64::default());
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `with_default_type.unwrap_or_default()`
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error: use of `unwrap_or` followed by a function call
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--> $DIR/methods.rs:346:14
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346 | with_vec.unwrap_or(vec![]);
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| ^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| vec![])`
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error: use of `unwrap_or` followed by a function call
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--> $DIR/methods.rs:351:21
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351 | without_default.unwrap_or(Foo::new());
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| ^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(Foo::new)`
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error: use of `or_insert` followed by a function call
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--> $DIR/methods.rs:354:19
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354 | map.entry(42).or_insert(String::new());
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| ^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `or_insert_with(String::new)`
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error: use of `or_insert` followed by a function call
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--> $DIR/methods.rs:357:21
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357 | btree.entry(42).or_insert(String::new());
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| ^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `or_insert_with(String::new)`
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error: use of `unwrap_or` followed by a function call
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--> $DIR/methods.rs:360:21
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360 | let _ = stringy.unwrap_or("".to_owned());
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| ^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| "".to_owned())`
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error: called `.iter().nth()` on a Vec. Calling `.get()` is both faster and more readable
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--> $DIR/methods.rs:371:23
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371 | let bad_vec = some_vec.iter().nth(3);
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| ^^^^^^^^^^^^^^^^^^^^^^
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= note: `-D clippy::iter-nth` implied by `-D warnings`
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error: called `.iter().nth()` on a slice. Calling `.get()` is both faster and more readable
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--> $DIR/methods.rs:372:26
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372 | let bad_slice = &some_vec[..].iter().nth(3);
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^
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error: called `.iter().nth()` on a slice. Calling `.get()` is both faster and more readable
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--> $DIR/methods.rs:373:31
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373 | let bad_boxed_slice = boxed_slice.iter().nth(3);
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| ^^^^^^^^^^^^^^^^^^^^^^^^^
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error: called `.iter().nth()` on a VecDeque. Calling `.get()` is both faster and more readable
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--> $DIR/methods.rs:374:29
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374 | let bad_vec_deque = some_vec_deque.iter().nth(3);
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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error: called `.iter_mut().nth()` on a Vec. Calling `.get_mut()` is both faster and more readable
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--> $DIR/methods.rs:379:23
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379 | let bad_vec = some_vec.iter_mut().nth(3);
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^
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error: called `.iter_mut().nth()` on a slice. Calling `.get_mut()` is both faster and more readable
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--> $DIR/methods.rs:382:26
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382 | let bad_slice = &some_vec[..].iter_mut().nth(3);
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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error: called `.iter_mut().nth()` on a VecDeque. Calling `.get_mut()` is both faster and more readable
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--> $DIR/methods.rs:385:29
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385 | let bad_vec_deque = some_vec_deque.iter_mut().nth(3);
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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error: called `skip(x).next()` on an iterator. This is more succinctly expressed by calling `nth(x)`
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--> $DIR/methods.rs:397:13
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397 | let _ = some_vec.iter().skip(42).next();
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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= note: `-D clippy::iter-skip-next` implied by `-D warnings`
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error: called `skip(x).next()` on an iterator. This is more succinctly expressed by calling `nth(x)`
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--> $DIR/methods.rs:398:13
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398 | let _ = some_vec.iter().cycle().skip(42).next();
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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error: called `skip(x).next()` on an iterator. This is more succinctly expressed by calling `nth(x)`
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--> $DIR/methods.rs:399:13
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399 | let _ = (1..10).skip(10).next();
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| ^^^^^^^^^^^^^^^^^^^^^^^
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error: called `skip(x).next()` on an iterator. This is more succinctly expressed by calling `nth(x)`
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--> $DIR/methods.rs:400:14
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400 | let _ = &some_vec[..].iter().skip(3).next();
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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error: used unwrap() on an Option value. If you don't want to handle the None case gracefully, consider using expect() to provide a better panic message
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--> $DIR/methods.rs:409:13
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409 | let _ = opt.unwrap();
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| ^^^^^^^^^^^^
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= note: `-D clippy::option-unwrap-used` implied by `-D warnings`
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error: aborting due to 50 previous errors
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